Lincoln Electric SVM 113-A service manual Stopping the Engine, For Best Engine Starting

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B-7

B-7

OPERATION

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FIGURE B.3

FUEL SHUT-OFF AND CHOKE CONTROL

Fuel Shut-off

Choke Controls

3.Set the Idler Control switch to the “AUTOMATIC” position. See Figure B.4.

4.Place the engine stop switch in the “RUN” position. See Figure B.4.

5.Pull slightly on the recoil starter handle until resis- tance is felt.

4. Pull the cord rapidly.

FOR BEST ENGINE STARTING:

Do not adjust air or fuel mixtures without following the procedures in the Briggs & Stratton Owner’s

Manual.

Always use fresh gasoline and be sure the filter is clean and properly maintained.

If you use an alternate fuel tank or supply, be sure to install an in-line fuel filter.

Do not pull the recoil starter with the choke in the left position more than one time. Repeated pulls on a choked engine will flood the carburetor.

If you don’t feel resistance when you pull the recoil cord, gently hit the starter housing and/or pull the cord out to its fully extended position and wiggle it rapidly. Repeat this if necessary until the clutch engages the shaft and you feel resistance when you pull the cord.

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• If the engine will not start, see the Troubleshooting

FIGURE B.4

section of this manual.

IDLER CONTROL AND STOP SWITCH

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Return to Master TOC

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Auto

Idler Control Switch

Stop Switch

6.Pull the starter cord rapidly.

7.If the engine does not start, open the choke slight- ly (move lever right) and pull the starter cord rapid- ly again.

When the engine starts, immediately open the choke to the right-most position. The engine will go to idle speed after about 12 seconds.

FOR A “HOT” ENGINE:

1.Open the fuel shutoff valve on the bottom of the engine.

2.Place the choke lever in the right-most, position. Closing the choke of a hot engine will flood the carburetor and prevent starting.

3.Pull slightly on the recoil starter handle until resis- tance is felt.

STOPPING THE ENGINE

1.Remove all welding and generator power loads and let the engine cool by running it for several minutes.

2.Stop the engine by placing the rocker run/stop switch in the stop position.

3.Close the fuel shutoff valve at the bottom of the engine, below the recoil starter.

WARNING

Close the fuel valve when the machine is transported to prevent fuel leakage from the carburetor. Drain the tank before transporting the machine in a vehicle.

For long periods of storage, turn off the fuel shutoff valve (horizontal upward position) and let the engine run until there is no more fuel in the line. Use a fuel additive such as Sta-Bil to minimize fuel gum deposits.

WELDANPOWER 125

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Contents Weldanpowertm California Proposition 65 Warnings SafetyElectric Shock can kill Cylinder may explode if damaged Précautions DE Sûreté Master Table of Contents for ALL Sections Table of Contents Installation Section Technical Specifications Weldanpower InstallationSafety Precautions Location and VentilationStoring PRE-OPERATION Engine Service Welding Cable Connections Electrical Output ConnectionsAuxiliary Power Receptacles Machine GroundingPlugs and HAND-HELD Equipment Circuit Breakers Premises WiringThese Devices Without Table of Contents Operation Section Operation Safety InstructionsOperating Instructions General DescriptionDesign Features Advantages Operational Features and ControlsRecommended Applications Welding CapabilityWELDER/GENERATOR Controls Controls and SettingsFigure B.2 Gasoline Engine Controls Gasoline Engine ControlsEngine Operation Before Starting the EngineStarting the Engine For Best Engine Starting Stopping the EngineBREAK-IN Period Welding OperationGeneral Information LOW OIL SensingTIG Welding To USE the Weldanpower 125 for WELD- INGTable B.2 Electrode Selection Guide To USE the Weldanpower 125 AS AN Auxiliary Power Supply Auxiliary PowerTable B.3 Generator Power Applications Table of Contents Accessories OPTIONS/ACCESSORIES Lincoln Electric AccessoriesBriggs and Stratton Accessories Table of Contents Maintenance Engine Maintenance Routine and Periodic MaintenanceMaintanence Figure D.3 Clean Finger GuardFigure D.5 SET Spark Plug GAP Table D.2 Engine Maintenance Parts WELDER/GENERATOR MaintenanceFigure D.6 Major Component Locations Table of Contents Theory of Operation Section Idler Board ENGINE, EXCITATION, Rotor and StatorAuxiliary Power Overcurrent Protection Rotor Field Feedback Auxiliary Power Engine Idle ControlFigure E.4 Weld WINDING, Output Rectifier and Choke Weld WINDING, Output Rectifier and ChokeTable of Contents Trouble Shooting & Repair Section HOW to USE Troubleshooting Guide Troubleshooting & RepairElectric Shock can kill PC Board Troubleshooting ProceduresOutput Problems Troubleshooting GuideOutput Rectifier Troubleshooting & Repair Perform the Engine Throttle Engine Problems Main Stator Winding Test Engine Throttle Adjustment Troubleshooting & Repair Weldanpower Rotor Voltage Test Test DescriptionMaterials Needed Rotor Voltage Test Test ProcedureRotor Resistance Test Rotor Resistance Test Figure F.3 Brushes Retained with Cable TIE Output Rectifier Bridge Test Output Rectifier Bridge Test Main Stator Test Main Stator Test Figure F.6 Main Stator Molex Plug Test Points Rotor Flashing Circuit Test Rotor Flashing Circuit Test WP125 Idler Engine Throttle Adjustment Test Test Procedure Figure F.12 Idle Speed Adjustment Screw Locations Figure F.13 LOW Idle Adjustment NUT on Idler Solenoid TOC Scope Settings Normal Open Circuit Weld Voltage WaveformHigh Idle no Load Output Control AT Maximum Normal Open Circuit Voltage Waveform 115 VAC Supply Typical Weld Output Waveform Machine LoadedMachine Loaded to 125 Amps AT 25 VAC Abnormal Open Circuit Weld Voltage Waveform Description Brush Removal and ReplacementFigure F.14 Brushes Retained with Cable TIE ProcedureProcedure Rheostat Removal and Replacement Rheostat Removal and Replacement Field Capacitor Removal and Replacement Field Capacitor Removal and Replacement Field Diode Bridge Removal and Replacement Field Diode Bridge Removal and Replacement Figure F.18 Field Diode Bridge Location Idler Printed Circuit Board Removal Replacement Carefully remove the board Output Rectifier Bridge Removal Replacement Output Rectifier Bridge Removal and Replacement Troubleshooting & Repair Output Choke Removal and Replacement Output Choke Removal and Replacement Section TOC Instructions STATOR/ROTOR Removal and ReplacementStator Removal Procedure Troubleshooting & Repair Reassembly Procedure Rotor Removal ProcedureFigure F.24 Checking ROTOR-STATOR AIR GAP Feeler Gauge Troubleshooting & Repair Retest After Repair Auxiliary Power Receptacle OUTPUT1Engine Output WELDER/GENERATOR OUTPUT1Weldanpower Table of Contents Diagrams Section Wiring Diagram Code 10158 Diagrams SchematicIdler PC Board M17578 Dimension Print Weldanpower Weldanpower M17578-1 M17578 Idler PC BoardDescription M17578 Idler PC Board Bill of MaterialsWeldanpower